IDENTITY Entry Processing

Generally, commands operate on IDENTITY entries just as if they were USER entries. The special processing considerations are as follows:

An IDENTITY statement may be present in a SKELETON entry.
A USER entry may be changed into an IDENTITY entry, or an IDENTITY entry (containing no BUILD statements) may be changed into a USER entry by issuing the CHGENTRY command as follows:
```
CHGENTRY entry [USER|IDENTITY]
```
BUILD statements are added to an IDENTITY entry whenever a SUBCONFIG entry is created by the ADDENTRY command.
BUILD statements are removed from an IDENTITY entry whenever a SUBCONFIG entry is removed by the DELENTRY command.
BUILD statements may not be added or deleted using the commands EDIT, EDX, or REPENTRY.
No BUILD statement within an IDENTITY entry may name a SUBCONFIG entry which does not exist.
No SUBCONFIG entry may exist without a BUILD statement naming it.